In context of environment, the term “dirty dozen” refers to _____...? Mcqs

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In context of environment, the term “dirty dozen” refers to _____...?

(A) 12 most harmful greenhouse gases
(B) 12 ozone depleting substances

(C) 12 persistent organic pollutants
(D) None of the above

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Which of the following glands secrete tears...?

(A) Lachrymal
(B) Pituitary

(C) Thyroid
(D) Pancreas

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Milk, meat, eggs and pulses provide us...?

(A) Protein
(B) Vitamin

(C) Mineral
(D) Carbohydrate

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Ruby is an oxide of__________...?

(A) silver
(B) gold

(C) platinum
(D) aluminium oxide

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Substances that react with both acids and bases are called...?

(A) Conjugate acids
(B) Conjugate bases

(C) Amphoteric substances
(D) Buffers

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Venera-9 was the first spacecraft landed on the surface of _____...?

(A) Jupiter
(B) Mercury

(C) Neptune
(D) Venus

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Big Bang theory explains_____________...?

(A) Origin of Universe
(B) Origin of Sun

(C) Laws of physics
(D) None of above

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Meteorology is the study of...?

(A) Seasons
(B) Atmosphere

(C) Air and sounds
(D) Winds and clouds

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The only source of energy on earth is ____...?

(A) Moon
(B) Star

(C) Water
(D) Sun

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The taste of water is ______...?

(A) Sour
(B) Bitter

(C) Sweet
(D) Tasteless

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